Baader Planetarium D-ERF Energy Rejection Filter, 110mm with IR-Cut Dielectric CoatingBaader planetarium has introduced a new evolution in their premium energy rejection filters, from 70mm up to 180mm! These filters incorporate a new all-dielectric IR re ... Learn More

Baader Planetarium D-ERF Energy Rejection Filter, 90mm with IR-Cut Dielectric CoatingBaader planetarium has introduced a new evolution in their premium energy rejection filters, from 70mm up to 180mm! These filters incorporate a new all-dielectric IR rej ... Learn More

Baader Planetarium D-ERF Energy Rejection Filter, 135mm with IR-Cut Dielectric CoatingBaader planetarium has introduced a new evolution in their premium energy rejection filters, from 70mm up to 180mm! These filters incorporate a new all-dielectric IR re ... Learn More

Baader Planetarium D-ERF Energy Rejection Filter, 160mm with IR-Cut Dielectric CoatingBaader planetarium has introduced a new evolution in their premium energy rejection filters, from 70mm up to 180mm! These filters incorporate a new all-dielectric IR re ... Learn More

Baader Planetarium D-ERF Energy Rejection Filter, 180mm with IR-Cut Dielectric CoatingBaader planetarium has introduced a new evolution in their premium energy rejection filters, from 70mm up to 180mm! These filters incorporate a new all-dielectric IR re ... Learn More